Musical-instrument insulator



(No Model.)

0. S. WEI Musical Instrumen R. t Insulator.

Patented June 15,1880.

t 2232;? A st W ILPITIRS. MYQLITHOGRAHER. WASHINGTON o C UNITED STATESPATENT OFFICE.

CHARLES S. WEIR, OF MADEIRA, OHIO.

MUSICAL-INSTRUMENT INSULATOR.

SPECIFI SATION forming part of Letters Patent No. 228,962, dated June15, 1880.

Application filed March 13, 1880. (No model.)

To all whom i may concern Be it knov n that I, CHARLES S..WEIR, of

Madeira, Ha: iilton county, Ohio, have invented certain nw and usefulImprovements in Musical-Instrument Insulators, of which the following isa specification.

This is an improvement on Letters Patent No. 150,112, issued April 21,1874, to O. Vigneron, and my invention consists in constructing theinsulator therein described without slots or such other intervals.

In the annexed drawings, Figure 1 is aperspective view of one form of myinsulator. Fig. 2 is a partially-sectionized elevation of another formof the device, and Fig. 3 is an axial section of a modification of thesame.

Referring to Figs. 1 and 2, A represents a solid glass block of anydesired shape, and B is a shallow pit or recess in the upper end of thesame, which pit is designed to receive the caster of a piano or organ orother similar instrument, as indicated by dotted lines G in Figs. 2 and3. As represented in Fig. 1, this block is a perfect cylinder; but itmay be ornamented with vertical flutes or moldings, or with one or morecircumferential grooves, G, as seen in Fig. 2 or the insulator may takethe shape of a glass shell, D, with a base or bead, E, and be filledwith any suitable cementor composition, F, as represented in Fig. 3.This composition, however, n1 nst be of such a nature as to render saidshell practically solid, or it will not be able to resist the requiredpressure; or the device may have a conical or pyramidal or other form,as the exact shape and proportions of the insulator constitute no partof my invention; but whichever construction is adopted care must betaken to make the block sufficiently strong and solid to sustain thepressure imparted by one leg of a piano or organ or other heavy musicalinstrument. Furthermore, the block must be free from slots or grooves ofany kind, as such defects would produce false vibrations, and therebyimpair the clear tone of the piano.

Of these insulators, one is to be placed under each corner of theinstrument, with the caster G seated in the pit B, care being taken tohave this pit so shallow as to prevent the leg of the piano resting uponthe block A, as such contact of the leg and block would defeat theobject of my invention. This elevation of the piano-leg above theinsulator is indicated by the dotted lines If in Figs. 2 and 3.

I am aware that it is not new to make a slotted piano-insulator of glassand provide the upper end of the same with a deep pit or cavity, inorder that the leg of the instrument may rest on the top of theinsulator, as such a construction is seen in the patent of Vigneronpreviously alluded to. the art, my claim is not designed to be construedbroadly, but is expressly limited to a glass insulator free from slotsand having at its upper end a shallow pit, within which rests thecaster, and thereby prevents the leg of the instrument coming in contactwith the solid insulator.

I claim as my invention A musical-instrument insulator consisting of asolid glass block, A, having a shallow recess or pit, B, at its upperend, constructed and adapted to receive the caster of a piano or organ,and to prevent the leg of the instrument coming in contact with saidinsulator, as herein described and illustrated.

In testimony of which invention I hereunto set my hand.

CHARLES S. WEIR.

Vituesses:

JAMEs H. LAYMAN, JEREMIAH F. TWOHIG.

Such being the state of

